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BaseRepresentation
bin101010001001…
…1110000111001
31112120211221101
41110103300321
521124213144
62105411401
7355566355
oct124236071
945524841
1022101049
1111525933
127499b61
13476a859
142d14465
151e186d4
hex1513c39

22101049 has 2 divisors, whose sum is σ = 22101050. Its totient is φ = 22101048.

The previous prime is 22101043. The next prime is 22101059. The reversal of 22101049 is 94010122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13875625 + 8225424 = 3725^2 + 2868^2 .

It is a cyclic number.

It is not a de Polignac number, because 22101049 - 23 = 22101041 is a prime.

It is not a weakly prime, because it can be changed into another prime (22101041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050524 + 11050525.

It is an arithmetic number, because the mean of its divisors is an integer number (11050525).

Almost surely, 222101049 is an apocalyptic number.

It is an amenable number.

22101049 is a deficient number, since it is larger than the sum of its proper divisors (1).

22101049 is an equidigital number, since it uses as much as digits as its factorization.

22101049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 22101049 is about 4701.1752785873. The cubic root of 22101049 is about 280.6322828684.

The spelling of 22101049 in words is "twenty-two million, one hundred one thousand, forty-nine".